Ing Corporation, which has only one product, has provided the following data concerning its most recent month of operations: Selling price $ 159 Units in beginning inventory 0 Units produced 7,800 Units sold 7,700 Units in ending inventory 100 Variable costs per unit: Direct materials $ 47 Direct labor $ 50 Variable manufacturing overhead $ 2 Variable selling and administrative expense $ 9 Fixed costs: Fixed manufacturing overhead $304,200 Fixed selling and administrative expense $ 84,700 What is the net operating income for the month under variable costing?